Articles | Volume 15, issue 6
https://doi.org/10.5194/os-15-1653-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/os-15-1653-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
10 Dec 2019
Research article |
| 10 Dec 2019
| 10 Dec 2019
Depth is relative: the importance of depth for transparent exopolymer particles in the near-surface environment
Tiera-Brandy Robinson
CORRESPONDING AUTHOR
Institute for Chemistry and Biology of the Marine Environment,
University of Oldenburg, Wilhelmshaven, Germany
Christian Stolle
Institute for Chemistry and Biology of the Marine Environment,
University of Oldenburg, Wilhelmshaven, Germany
Biological oceanography, Molecular and microbial ecology, Leibniz-Institute for Baltic Sea Research Warnemünde (IOW),
Rostock, Germany
Oliver Wurl
Institute for Chemistry and Biology of the Marine Environment,
University of Oldenburg, Wilhelmshaven, Germany
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Cited articles
Azetsu-Scott, K. and Passow, U.: Ascending marine particles: Significance
of transparent exopolymer particles (TEP) in the upper ocean,
Limnol. Oceanogr., 49, 741–748, https://doi.org/10.4319/lo.2004.49.3.0741, 2004.
Banko-Kubis, H. M., Wurl, O., Mustaffa, N. I. H., and Ribas-Ribas, M.: Gas transfer velocities in norwegian fjords and the adjacent north atlantic waters, Oceanologia, 61, 460–470, https://doi.org/10.1016/j.oceano.2019.04.002, 2019.
Behrenfeld, M. J. and Falkowski, P. G.: A consumer's guide to phytoplankton
primary productivity models, Limnol. Oceanogr., 42, 1479–1491,
https://doi.org/10.4319/lo.1997.42.7.1479, 1997.
Bittar, T. B., Passow, U., Hamaraty, L., Bidle, K. D., and Harvey, E. L.: An
updated method for the calibration of transparent exopolymer particle
measurements, Limnol. Oceanogr.-Methods, 16, 621–628,
https://doi.org/10.1002/lom3.10268, 2018.
Bjørnsen, P. K. and Nielsen, T. G.: Decimeter scale heterogeneity in the
plankton during a pycnocline bloom of Gyrodinium aureolum,
Mar. Ecol. Prog. Ser., 73, 263–267, https://doi.org/10.3354/meps073263 1991.
Blanchard, D. C. and Woodcock, A. H.: Bubble Formation and Modification in
the Sea and its Meteorological Significance, Tellus, 9, 145–158,
https://doi.org/10.3402/tellusa.v9i2.9094, 1957.
Bollens, S. M., Rollwagen-Bollens, G., Quenette, J. A., and Bochdansky, A.
B.: Cascading migrations and implications for vertical fluxes in pelagic
ecosystems, J. Plankton Res., 33, 349–355,
https://doi.org/10.1093/plankt/fbq152, 2010.
Busch, K., Endres, S., Iversen, M. H., Michels, J., Nöthig, E.-M., and
Engel, A.: Bacterial Colonization and Vertical Distribution of Marine Gel
Particles (TEP and CSP) in the Arctic Fram Strait,
Frontiers in Marine Science, 4, 166, https://doi.org/10.3389/fmars.2017.00166, 2017.
Carpenter, E. J., Janson, S., Boje, R., Pollehne, F., and Chang, J.: The
dinoflagellate Dinophysis norvegica: biological and ecological observations
in the Baltic Sea, Eur. J. Phycol., 30, 1–9,
https://doi.org/10.1080/09670269500650751, 1995.
Cheriton, O., McManus, M., Stacey, M., and Steinbuck, J.: Physical and
biological controls on the maintenance and dissipation of a thin
phytoplankton layer, Mar. Ecol. Prog. Ser., 378, 55–69,
https://doi.org/10.3354/meps07847, 2009.
Cipriano, R. J. and Blanchard, D. C.: Bubble and aerosol spectra produced
by a laboratory “breaking wave”, J. Geophys. Res.-Oceans,
86, 8085–8092, https://doi.org/10.1029/jc086ic09p08085, 1981.
Cisternas-Novoa, C., Lee, C., and Engel, A.: Transparent exopolymer
particles (TEP) and Coomassie stainable particles (CSP): Differences between
their origin and vertical distributions in the ocean, Mar. Chem., 175,
56–71, https://doi.org/10.1016/j.marchem.2015.03.009, 2015.
Cunliffe, M. and Murrell, C.: The sea-surface microlayer is a gelatinous
biofilm, ISME J., 3, 1001–1003, https://doi.org/10.1038/ismej.2009.69, 2009.
Cunliffe, M. and Wurl, O.: Guide to the best practices to study the ocean's
surface, Marine Biological Association of the United Kingdom, Plymouth, UK,
118 pp., 2014.
Cunliffe, M., Engel, A., Frka, S., Gasparovic, B., Guitart, C., Murrell, C.,
Salter, M., Stolle, C., Upstill-Goddard, R., and Wurl, O.: Sea surface
microlayers: A unified physicochemical and biological perspective of the
air–ocean interface, Prog. Oceanogr., 109, 104–116,
https://doi.org/10.1016/j.pocean.2012.08.004, 2013.
Deane, G. and Stokes, M.: Scale dependence of bubble creation mechanisms in
breaking waves, Nature, 418, 839–844, https://doi.org/10.1038/nature00967, 2002.
Dekshenieks, M. M., Donaghay, P. L., Sullivan, J. M., Rines, J. E., Osborn,
T. R., and Twardowski, M. S.: Temporal and spatial occurrence of thin
phytoplankton layers in relation to physical processes, Mar. Ecol. Prog. Ser., 223, 61–71, https://doi.org/10.3354/meps223061 2001.
Engel, A.: Distribution of transparent exopolymer particles (TEP) in the
northeast Atlantic Ocean and their potential significance for aggregation
processes, Deep-Sea Res. Pt. I, 51,
83–92, https://doi.org/10.1016/j.dsr.2003.09.001, 2004.
Engel, A., Bange, H. W., Cunliffe, M., Burrows, S. M., Friedrichs, G.,
Galgani, L., Herrmann, H., Hertkorn, N., Johnson, M., and Liss, P. S.: The
ocean's vital skin: Toward an integrated understanding of the sea surface
microlayer, Frontiers in Marine Science, 4, 165, https://doi.org/10.3389/fmars.2017.00165,
2017.
Goering, J. J. and Wallen, D.: The vertical distribution of phosphate and
nitrite in the upper one-half meter of the Southeast Pacific Ocean,
Deep-Sea Res., 14, 29–33, 1967.
Grasshoff, K., Kremling, K., and Ehrhardt, M.: Methods of seawater analysis,
Wiley, New York, https://doi.org/10.1002/9783527613984, 1999.
Haines, M. A. and Johnson, B. D.: Injected bubble populations in seawater
and fresh water measured by a photographic method,
J. Geophys. Res., 100, 7057–7068, https://doi.org/10.1029/94jc03226, 1995.
Hardy, J. T.: The Sea Surface Microlayer: Biology, Chemistry and
Anthropogenic Enrichment, Prog. Oceanogr., 11, 307–328,
https://doi.org/10.1016/0079-6611(82)90001-5, 1982.
Harvey, G. and Burzell, L.: A Simple Microlayer Method for Small Samples,
Limnol. Oceanogr., 17, 156–157, https://doi.org/10.4319/lo.1972.17.1.0156, 1972.
Kodama, T., Kurogi, H., and Okazaki, M.: Vertical distribution of
transparent exopolymer particle (TEP) concentration in the oligotrophic
western tropical North Pacific, Mar. Ecol. Prog. Ser., 513, 29–37,
https://doi.org/10.3354/meps10954, 2014.
Kuznetsova, M., Lee, C., Aller, J., and Frew, N.: Enrichment of amino acids
in the sea surface microlayer at coastal and open ocean sites in the North
Atlantic Ocean, Limnol. Oceanogr., 49, 1605–1619,
https://doi.org/10.4319/lo.2004.49.5.1605 2004.
Liss, P. and Duce, R.: The Sea Surface and Global Change, Cambridge
University Press, 251–286, 1997.
Liss, P. S., Liss, P. S., and Duce, R. A.: The sea surface and global
change, Cambridge University Press, 251–286, 2005.
Louis, J., Pedrotti, M. L., Gazeau, F., and Guieu, C.: Experimental evidence
of formation of Transparent Exopolymer Particles (TEP) and POC export
provoked by dust addition under current and high pCO2 conditions, PloS one,
12, e0171980, https://doi.org/10.1371/journal.pone.0171980, 2017.
Manzi, J., Stofan, P., and Dupuy, J.: Spatial heterogeneity of phytoplankton
populations in estuarine surface microlayers, Mar. Biol., 41, 29–38,
https://doi.org/10.1007/bf00390578, 1977.
Mari, X., Passow, U., Migon, C., Burd, A. B., and Legendre, L.: Transparent
exopolymer particles: Effects on carbon cycling in the ocean, Prog. Oceanogr., 151, 13–37, https://doi.org/10.1016/j.pocean.2016.11.002, 2017.
Marie, D., Simon, N., Guillou, L., Partensky, F., and Vaulot, D.: Flow cytometry analysis of marine picoplankton, in: In Living Color, 421–454, Springer, Berlin, Heidelberg, 2000.
Mitchell, J. G., Yamazaki, H., Seuront, L., Wolk, F., and Li, H.:
Phytoplankton patch patterns: seascape anatomy in a turbulent ocean,
J. Marine Syst., 69, 247–253, https://doi.org/10.1016/j.jmarsys.2006.01.019, 2008.
Momzikoff, A., Brinis, A., Dallot, S., Gondry, G., Saliot, A., and Lebaron,
P.: Field study of the chemical characterization of the upper ocean surface
using various samplers, Limnol. Oceanogr.-Meth., 2, 374–386,
https://doi.org/10.4319/lom.2004.2.374, 2004.
Nielsen, T. G., Kiørboe, T., and Bjørnsen, P. K.: Effects of a
Chrysochromulina polylepis subsurface bloom on the planktonic community,
Mar. Ecol. Prog. Ser., 62, 21–35, https://doi.org/10.3354/meps062021 1990.
Ortega-Retuerta, E., Sala, M. M., Borrull, E., Mestre, M., Aparicio, F. L.,
Gallisai, R., Antequera, C., Marrasé, C., Peters, F., and Simó, R.:
Horizontal and Vertical Distributions of Transparent Exopolymer Particles
(TEP) in the NW Mediterranean Sea Are Linked to Chlorophyll a and O2
Variability, Front. Microbiol., 7, 2159, https://doi.org/10.3389/fmicb.2016.02159,
2017.
Passow, U.: Production of transparent exopolymer particles (TEP) by phyto-
and bacterioplankton, Mar. Ecol. Prog. Ser., 236, 1–12,
https://doi.org/10.3354/meps236001, 2002a.
Passow, U.: Transparent exopolymer particles (TEP) in aquatic environments,
Prog. Oceanogr., 55, 287–333, https://doi.org/10.1038/npre.2007.1182.1, 2002b.
Passow, U. and Alldredge, A.: A dye-binding assay for the
spectrophotometric measurement of transparent exopolymer particles (TEP),
Limnol. Oceanogr., 40, 1326–1335, https://doi.org/10.4319/lo.1995.40.7.1326, 1995.
Reinthaler, T., Sintes, E., and Herndl, G.: Dissolved organic matter and
bacterial production and respiration in the sea–surface microlayer of the
open Atlantic and the western Mediterranean Sea, Limnol. Oceanogr.,
53, 122–136, https://doi.org/10.4319/lo.2008.53.1.0122, 2008.
Ribas-Ribas, M., Hamizah Mustaffa, N. I., Rahlff, J., Stolle, C., and Wurl,
O.: Sea Surface Scanner (S3): A Catamaran for High-Resolution Measurements
of Biogeochemical Properties of the Sea Surface Microlayer,
J. Atmos. Ocean. Tech., 34, 1433–1448,
https://doi.org/10.1175/jtech-d-17-0017.1, 2017.
Robinson, T.-B., Wurl, O., Bahlmann, E., Jürgens, K., and Stolle, C.:
Rising bubbles enhance the gelatinous nature of the air–sea interface,
Limnol. Oceanogr., 64, 2358–2372, https://doi.org/10.1002/lno.11188, 2019a.
Robinson, T.-B., Stolle, C., and Wurl, O.: Biochemical parameters in the underlying water (ULW) from Cape Verde, the Baltic Sea, and Norwegian fjords/Sea, PANGAEA, https://doi.org/10.1594/PANGAEA.903834 (dataset in review), 2019b.
Schuech, R. and Menden-Deuer, S.: Going ballistic in the plankton:
anisotropic swimming behavior of marine protists, Limnol. Oceanogr., 4, 1–16, https://doi.org/10.1215/21573689-2647998,
2014.
Sengupta, A., Carrara, F., and Stocker, R.: Phytoplankton can actively
diversify their migration strategy in response to turbulent cues, Nature,
543, 1–42, https://doi.org/10.1038/nature21415, 2017.
Shinki, M., Wendeberg, M., Vagle, S., Cullen, J. T., and Hore, D. K.:
Characterization of adsorbed microlayer thickness on an oceanic glass plate
sampler, Limnol. Oceanogr.-Meth., 10, 728–735,
10.4319/lom.2012.10.728, 2012.
Sieburth, J.: Microbiological and organic-chemical processes in the surface
and mixed layers, in: Air-Sea Exchange of Gases and Particles, edited by:
Liss, P. and Slinn, W., Reidel Publishers Co, Hingham, MA, 121–172, 1983.
Sun, C.-C., Sperling, M., and Engel, A.: Effect of wind speed on the size distribution of gel particles in the sea surface microlayer: insights from a wind-wave channel experiment, Biogeosciences, 15, 3577–3589, https://doi.org/10.5194/bg-15-3577-2018, 2018.
Wasmund, N., Topp, I., and Schories, D.: Optimising the storage and
extraction of chlorophyll samples, Oceanologia, 48, 125–144, 2006.
Wetzel, R. G. and Likens, G.: Limnological Analyses, Springer New York,
85–112, 2000.
Wurl, O. and Holmes, M.: The gelatinous nature of the sea-surface
microlayer, Mar. Chem., 110, 89–97, https://doi.org/10.1016/j.marchem.2008.02.009,
2008.
Wurl, O., Miller, L., Röttgers, R., and Vagle, S.: The distribution and
fate of surface-active substances in the sea-surface microlayer and water
column, Mar. Chem., 115, 1–9, https://doi.org/10.1016/j.marchem.2009.04.007, 2009.
Wurl, O., Miller, L., and Vagle, S.: Production and fate of transparent
exopolymer particles in the ocean, J. Geophys. Res., 116,
C00H13, https://doi.org/10.1029/2011JC007342, 2011a.
Wurl, O., Wurl, E., Miller, L., Johnson, K., and Vagle, S.: Formation and global distribution of sea-surface microlayers, Biogeosciences, 8, 121–135, https://doi.org/10.5194/bg-8-121-2011, 2011b.
Wurl, O., Stolle, C., Van Thuoc, C., The Thu, P., and Mari, X.: Biofilm-like
properties of the sea surface and predicted effects on air–sea CO2
exchange, Prog. Oceanogr., 144, 15–24,
https://doi.org/10.1016/j.pocean.2016.03.002, 2016.
Wurl, O., Ekau, W., Landing, W. M., and Zappa, C. J.: Sea surface microlayer
in a changing ocean–A perspective, Elem. Sci. Anth., 5, 31,
https://doi.org/10.1525/elementa.228, 2017.
Yamada, Y., Fukuda, H., Inoue, K., Kogure, K., and Nagata, T.: Effects of
attached bacteria on organic aggregate settling velocity in seawater,
Aquat. Microb. Ecol., 70, 261–272, https://doi.org/10.3354/ame01658, 2013.
Yamada, Y., Yokokawa, T., Uchimiya, M., Nishino, S., Fukuda, H., Ogawa, H.,
and Nagata, T.: Transparent exopolymer particles (TEP) in the deep ocean:
full-depth distribution patterns and contribution to the organic carbon
pool, Mar. Ecol. Prog. Ser., 583, 81–93, https://doi.org/10.3354/meps12339, 2017.
Zamanillo, M., Ortega-Retuerta, E., Nunes, S., Rodríguez-Ros, P., Dall'Osto, M., Estrada, M., Montserrat Sala, M., and Simó, R.: Main drivers of transparent exopolymer particle distribution across the surface Atlantic Ocean, Biogeosciences, 16, 733–749, https://doi.org/10.5194/bg-16-733-2019, 2019.
Zhou, J., Mopper, K., and Passow, U.: The role of surface-active
carbohydrates in the formation of transparent exopolymer particles by bubble
adsorption of seawater, Limnol. Oceanogr., 43, 1860–1871,
https://doi.org/10.4319/lo.1998.43.8.1860, 1998.
Short summary
Data from three campaigns were combined to look at the enrichment of gel particles, which act as a large source of organic matter transport, in the sea surface microlayer. Additionally, depth profiles showed that the vertical distribution in the upper 2 m of the ocean can be both homogeneously and heterogeneously mixed. This highlights the importance of depth for measurements when studying enrichment and the complexity of the near-surface environment.
Data from three campaigns were combined to look at the enrichment of gel particles, which act as...
